The main() function takes user input for their name and favorite number, calculates the square of that number, and displays a personalized message.

• Declares three variables: name (string), favoriteNumber (integer), and square (integer).

• Prompts the user with "What's your name?" and stores the input in name.

• Prompts the user with "What's your favorite number?" and stores the input in favoriteNumber.

• Calculates the square of the number using favoriteNumber * favoriteNumber and stores it in square.

• Uses cout to print a personalized message showing the user’s name, their number, and its square — for example:
  "Hi Jordan, the square of 7 is 49."

• Ends with return 0; to indicate successful program completion.